Oh com'on I encountered rude people of every type - be it E, F or D - here is not the point of being from that ethnicity! The point is there is plenty rude people in this game, but at the same time there is a lot of nice ones... I encountered the nicest E,F and D people. The point is that F and D get noticed the most because they have different letter.

OP was unlucky and fell into a group of rude people and also with a language barrier...